Yarn tensioning means



March 20, 1945. C, BQDANSKY 2,372,053

YARN TENSIONING MEANS Filed Dec. 3. 1943 ATTORNE S.

Patented Mar. 20, 1945 John C. Bodansky,

Cocker Machine Gastonia, N. C., and Foundry Company, Gasassignor to tonia, N. C., a corporation of North Carolina Application December 3, 1943, Serial No. 512,730 I 7 Claims. (Cl. 242-150) This invention relates to yarn tensioning means useful in the textile industry, particularly in connection with creels on which a great number of yarn supply packages are supported in suitably spaced relation to enable withdrawal of the yarns without danger of contact or entanglement -with each other incident to beam or ball warping and other operations.

In creels as ordinarily constructed the yarns are directly drawn without restraint from the supply packages. Under these conditions yarns of relatively fine denier or count can be very satisfactorily wound upon beams with assurance of uniform distribution and even density. However, with comparatively heavier yarns such as the cord used in the reinforcement of the shoes of pneumatic automobile tires, the winding and distribution of the yarns on the beams is apt to vary considerably in the absence of definite control during withdrawal from the supply packages' on the creel.

The chief aim of my invention is to overcome the above drawback. This desideratum is attained in practice as hereinafter more fully disclosed through provision of a simple and inexpensive tensioning means capable of serving for multiple yarns;V and moreover capable of adjustment to simultaneously vary the tension induced in all the yarns under its control.

Other objects and attendant advantages will appear from the following description of the attached drawing, wherein Fig. 1 is a fragmentary view in vertical section of a. creel wherewith is incorporated a yarn tensioning means conveniently embodying my invention.

Fig. 2 is a horizontal sectional view taken as indicated by the angled arrows II-II in Fig. 1.

Figs. 3, 4, 5 and 6 are perspective views of different component parts of the tensioning means which will be individually referred to hereinafter.

From Figs. 1 and 2 of the drawing it will be noted that my improved tensioning means includes two vertically-spaced brackets III and II which are separately illustrated in perspective in Figs. 3 and 4, and whereof the lower one is fixedly secured to a horizontal rail I2 of the creel. As shown, the bracket I has a horizontal circular center plate I3 with an upstanding tubular axial boss I4. Supported at a slight elevation above the center plate I3 by a number of inclined radial arms I5 is a concentric semi-circular sector I6 with an upstanding flange or ridge I 1 having a series of spaced notches I8, said ridge terminatlng at its opposite ends in upright stop projections I9. At its rear, the bracket III is provided, for a purpose presently explained, with a flat upstanding lug 20 which is integrally connected by a web 2| with the boss I4. 'I'he upper bracket II which is separately illustrated in perspective in Fig. 4 is in the form of a fiat semi-circular plate 22 having an axial boss 23 which extends above as well as below the plate, and a peripheral ridge 24 with notches 25 corresponding in number and in position to the notches I8 of the lowex` bracket I0. 'Ihe upper bracket II also has a flat perpendicular lug 26 which extends both above and below the plate 22, and the latter is provided with an arcuate slot 21 in concentric relation to the axis of the boss 23. By means of a clamp 26 at the upper end of the lug 26 the bracket II is aixed to a transverse tubular beam 29 of the creel. A tie strip 30 of wood or the like extends vertically between the brackets I Il and II, being secured to the lug 20 of the lower bracket by cap screws 3I and to the pendent portion of the lug 26 of the upper bracket by similar screws 32. Lodged in the strip 30 at intervals of its height are eyes 33 of porcelain or the like for guiding yarns such as instanced at Y in Fig. 1 en route from individual supply packages (not shown) on the creel to winding or other apparatus (not shown).

Journaled in thebosses I4 and 23 of the brackets III and II is a vertical rod or shaft 35 whereto are fxedly secured a pair of arms 36 and 31 having end projections 36 and' 39 for engaging corresponding notches I8 and 25 in said brackets, one of said arms being illustrated in perspective in Fig. 5. Adjacent their outer ends the arms 36 and 3l are provided with bosses 40 and 4I wherein the opposite ends of a vertical rod 42 are flxedly secured, said rod being parallel with the rod 35 and passing with clearance through the arcuate slot 21 in the upper bracket I I. Intermediate the brackets IIJ and II the rods 35 and 42 are connected by vertically-spaced cross arms 43 whereof one is illustrated in perspective in Fig. 6. As shown in Fig. 1, the cross arms serve as supports for pairs of tension disks 44. 45 and 46, 4l which are freely rotative about the rods 35 and 42. Upon emergence fromthe guide eyes 33 in the strip 30 each yarn passes between a pair of the tension disks 44 and 45, to one side of the rod 35, and from thence between the tension disks 46 and 4l to the opposite side of the rod 42. As a. consequence of being secured by set screws 48, it is possible to adjust the connecting arms 43 up and down Ion the rods 35 and 42 to accurately position the meetlngplanes of the disks Il. I5 and 46. 41 in the planes o! the eyes I3. When a change in yarn tension is desired, the rods 35 'and 42 are lifted slightly to disengage the projections 38 and 39 of the arms 38 and l1 from the notches I8 and 25 of the brackets Ill and Il, whereupon said arms are swung about the axis o! the rod 35 and their projections 38 and 39 engaged in other notches o! said brackets. From Fig. 2 it will be obvious that when the arms 36 and 31 are moved clockwise from the central position in which they are illustrated, the tension on the yarns Y will be increased, and that when said arms are moved counter-clockwise the tension on the yarns will be decreased. While I have shown but two of the arms 43, it is o1' course to be understood that a great many more of them may be employed depending upon the number of yarns which it iis-desired to control. Furthermore, the capacity of the unit may, if found desirable or advantageous, be amplified or reduced by changing the spacing between the brackets Iii and Ii and by correspondingly lengthening or shortening the rods 35 and l2. It is moreover to be understood that multiples o! the unit are intended to be employed in large creeis. Accordingly the notches in the two brackets are consecutively numbered in opposite directions from the center as shown to avoidl errors when it is desired to adjust several such tensioning units in a creel to the same degree.

From the foregoing it will thus be evident that I have provided a simple and inexpensive means whereby the tension induced in a plurality of yarns may be increased or decreased in a very short space of time and with exertion of e. minimum of effort.

Having thus described my invention, I claim: l. Yarn tensioning means o! the character described eornprising a pair of vertically-spaced horizontal brackets withaligned bearings and 40 notched sector portions concentric with said bearing apertures; a pair of laterally-'spaced rods about the opposite Vsides of which yarns to be tensioned are passed, one of said rods being engaged with ment in the aligned bearings of the two brackets; and arms secured to the rotative and axially movable rod and carrying the other rod, said arms being selectively engageable downwardly with corresponding notches of vary the tension induced in the yarns.

2. Yarn tensioning means according to claim 1, wherein the two rods are connected at intervals between the brackets by cross arms: and

wherein said cross arms support with capacity for free rotation about said rods, corresponding pairs of superposed tension disks for engagement by the respective passing yarns.

3. Yarn tensioning means of the character described comprising a pair of vertically spaced brackets; a pair of spaced parallel vertical rods extending between the brackets and about the opposite sides of which the yarns to be tensioned are passed; and corresponding pairs of tension disks freely rotatable about the rods at intervals between the brackets for engagement by individual passing threads, the lower disk of each pair being supported from' beneath, and the upper disk of each pair resting upon its mate.

4. Yarn tensioning means of the character described comprising a pair of vertically spaced,

brackets; a. pair of spaced parallel vertical rods extending between the brackets and about the opposite sides of which the yarns to be tensioned are passed; cross arms connecting the rods at intervals between the brackets; and corresponding pairs of tension disks supported on the cross arms with capacity to rotate freely about said rods, for engagement by the respective threads.

5. Yarn tension means characterized as in claim 3, wherein one of the rods is journaled in the brackets; wherein arms are secured to the journaled rod adjacent its opposite ends and carry the other rod; and means whereby said arms may be secured in different angular positions to vary the tension induced in the yarns.

6. Yarn tension means characterized asin claim 4, wherein one of the rods is journaled in the brackets; wherein arms are secured to the journaled rod adjacent its opposite ends and carry the other rod; and means whereby said arms may be secured in different angular positions to vary the tension induced in the yarns.

capacity for rotative and axial moves 7. Yarn tensioning means characterized as in claim 4, wherein guides for the individual threads are supported by a xed member extending vertically between the brackets; and wherein the cross arms are adjustable along the rods for accurate positioning of the tension disks carried by them relative to the corresponding thread guide the brackets to V in said member.

JOHN C. BODANSKY. 

